From 5e5a34537e5f2efc71181f2bf6878c3e2e62b398 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 22 May 2013 23:02:00 +0300
Subject: [PATCH] Implement the missing assignment operator in CompositeShape

Also rewrite the copy constructor in a slightly different way.
---
 source/geometry/compositeshape.h | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/source/geometry/compositeshape.h b/source/geometry/compositeshape.h
index 8466076..55467d7 100644
--- a/source/geometry/compositeshape.h
+++ b/source/geometry/compositeshape.h
@@ -22,10 +22,10 @@ protected:
 
 	CompositeShape() { }
 	CompositeShape(const Shape<T, D> &, const Shape<T, D> &);
-	CompositeShape(const CompositeShape &);
-	CompositeShape &operator=(const CompositeShape &);
 	template<typename Iter>
 	void init_from_iter_range(const Iter &, const Iter &);
+	CompositeShape(const CompositeShape &);
+	CompositeShape &operator=(const CompositeShape &);
 public:
 	virtual ~CompositeShape();
 
@@ -55,11 +55,22 @@ inline void CompositeShape<T, D, O>::init_from_iter_range(const Iter &begin, con
 }
 
 template<typename T, unsigned D, typename O>
-inline CompositeShape<T, D, O>::CompositeShape(const CompositeShape<T, D, O> &other)
+inline CompositeShape<T, D, O>::CompositeShape(const CompositeShape<T, D, O> &other):
+	shapes(other.shapes)
 {
-	shapes.reserve(other.shapes.size());
-	for(typename ShapeArray::const_iterator i=other.shapes.begin(); i!=other.shapes.end(); ++i)
-		shapes.push_back((*i)->clone());
+	for(typename ShapeArray::iterator i=shapes.begin(); i!=shapes.end(); ++i)
+		*i = (*i)->clone();
+}
+
+template<typename T, unsigned D, typename O>
+inline CompositeShape<T, D, O> &CompositeShape<T, D, O>::operator=(const CompositeShape<T, D, O> &other)
+{
+	for(typename ShapeArray::iterator i=shapes.begin(); i!=shapes.end(); ++i)
+		delete *i;
+
+	shapes = other.shapes;
+	for(typename ShapeArray::iterator i=shapes.begin(); i!=shapes.end(); ++i)
+		*i = (*i)->clone();
 }
 
 template<typename T, unsigned D, typename O>
-- 
2.43.0